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'Slender Man' Stabbing

Two girls, now 13 and 14 years old, face attempted attempted "first-degree intentional homicide" charges for allegedly stabbing another girl 19 times in the woods in Waukesha, Wisconsin, in May, 2014. Police and prosecutors say they were trying to please an online demonic creature called "Slender Man."

Two girls, now 13 and 14 years old, face attempted attempted "first-degree intentional homicide" charges for allegedly stabbing another girl 19 times in the woods in Waukesha, Wisconsin, in May, 2014. Police and prosecutors say they were trying to please an online demonic creature called "Slender Man."

Two 12-year-old girls are accused of attempted homicide after cops say they tried to stab their friend to death to win the fictional character's approval. Parents weigh in on "Slender Man," and whether he poses a threat. NBC national correspondent Kate Snow reports.

Two 12-year-old girls have been charged in trying to murder their best friend. Police say they did it out of allegiance to a character from online horror stories. NBC's national correspondent Kate Snow reports.